Longacre Basic Tire Durometer Alpinestars Youth Suits The R-9285 works with narrow

The R-9285 works with narrow width side-mounting seats with a measurement at the side-mounting point of 385-409mm

Strength requirements for harness mounts are considerably greater than those for harness guide bars since they must support the entire load applied to the belts

Also features an air pressure release button

Will not interfere with factory seat belt

Real-time GPS data (laptimes

Longacre Basic Tire Durometer Alpinestars Youth Suits The R-9285 works with narrowThe Longacre Basic Durometer measures changes in tire hardness so you can keep track of this important information. Using the Shore A scale, the durometer reads from 0 100 points. A straight edge on the base of the durometer allows the user to rock the gauge for more consistant results. Non slip coating on the back gives better grip for even more accurate readings. Includes hard plastic case.